Trolley-contact.



J.- P. GROHDWSKY. TROLLBY CONTACT.v APPLICATION IILEDMAY 10, um.

1,126,989. Patented Feb. 2, 1915.

/z 45 u a (ii/z]? THE NORRIS PETERS CO. PHOTC-LITHO. WASHINGTON. D. C4 1 JOHN F. GROHOWSKY, or KINGSTON,

PENNSYLVANIA.

TROLLEY-CONTAGT.

Specification of Letters Patent.

Patented Feb. 2, 1915.

Application filed. May 10, 1913. Serial No. 766,906.

To all whom it may concern Be it known that 1, JOHN F. GRoHowsKY, a citizen of'the United States, residing at Kingston, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Trolley-Contact, of which the clamped upon the trolley wire without cutting or bending the wire, thus rendering it as shown particularly in Figs. 2 and possible to attach the same at any point along the right of way that it is desired to operate electromagnetically controlled switch point mechanisms, and especially of that type where the electromagnets are controlled due to the position of the controller of the motor car.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and inthe details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a diagrammatic view illustrating tion. Fig. 2 is a side elevation of the trolley carried member at the point of operation of the switch. Fig. 3 is a section taken on line 55 of Fig. 2.

Referring to the drawings, the numeral 1 designates an overhead trolley-wire, although it is to be understood that the present device may be used in connection with an underground trolley system, the said wire having disposed thereabout, the devige 7 which constitutes a shunting means for operating the switch point, as will pres ently appear, due to the position of the trolley wheel relatively to such device and the manipulation of the controller 0, as illustrated in Fig. 1. The trolley wire 1 at this point is incased with the member, which includes the carrying portion 2, the spaced and insulated plates 3 and 4, the insulated sectional bushings 6 and 6' which are fitted between the plates 3 and 4 and carried by the supporting member 2 through the run the present invenby the screws 5, and the insulating bushings 7 and bolts 8. By this means, the trolley is properly incased at this point, and the device 2 may be supported from any form of support similar to the cross over and trolley supports as now used.

Positioned adjacent the device 2, along the right of way, is a vertical post 10, which carries the mechanism incasing cabinet 9 which may be of any desired construction and may be positioned in ready access to the operatives of the road. A conductor is led from the trolley 1 to the post 10 and is connected to the solenoid 12 disposed within the cabinet 9 while the conductor 13 is led from the solenoid and is connected to the metal plate 1 of the device 2. The method of controlling the solenoid 12 will be set forth later on, the detail description of the instal lation being set forth at the present time.

A conductor 14: is led from the metal plate 3 and through the resistance 15, which is preferably composed of powdered graphite, a conductor 16 being led therefrom to the contact plate 17 carried upon the lower end of the solenoid core 18, said core 18 extending vertically through the solenoid 12 within the insulating sleeve 12 thereof. Carried upon the upper end of the core 18, is a metal disk 21, while disposed in fixed relation upon the opposite ends of the solenoid 12 and insulated therefrom, are the two metal plates 19 and 20, the purpose of which will presently appear.

When the parts are in normal position, as clearly shown in Fig. 1, the core 18 being in its lowermost position, the disk 21 is in contact with the plate 20 and thus any current passing through the core 18 will continue to the plate 20 and through the conduotor 23 to the switch operating solenoid 21 which is grounded at 25. When the solenoid 12 is energized sufiiciently to elevate the core 18, the metal contact 20 will be disengaged from the contact plate 21, while the plate 17 will be engaged with the contact plate 19, thus causing the current to flow through the conductor 26 to the switch operating solenoid 27 which operates in opposition to the solenoid 21 and is grounded as at 28.

The two solenoids 2 1 and 27 are adapted to be operated selectively, due to the manipulation of the controller C of the motor car, and when the trolley wheel W is bridging the contact plates 3 and 4 of the device 2.

The conductor 29 is" led from the pole P in the usual manner through the controller C and the motors M of the car m tts ground G. Assuming that the car is approaching;

and the motorman desires to select and op er ate the solenoid 24, the controller C is closed at'no'current is'fiowing to themo't'ors so th M and as the trolley wheel W bridges the plates 3 and 4, a certain portion of the current will be: shunted from the trolley 1 but will be of insuflicient capacity to energize the solenoid12,the core 18'remaining, in the position, as clearly shown in Fig. 1,softhat' the current to the solenoid 24 will flow as follows: the trolley wire. 1, the conductor 11, thGrSOlBIlOlCllQ, theconductor13, the con tact plate 4, the wheel VV, the contact plate- 3, the conductor 14, the resistance'15, which" is in reality a slight choking means to pro-' tect the'respective solenoids '24 and 27 from too great a charge of current, the conductor 16, thecontact 17, the core 18, thecontact 21', thecontactplate 20, the conductor 23, thesolenoid 24k and the: ground 25. Now assume ing that the next following car. desiresto operate: thev solenoid 27 and proceed in a direction opposite to the. preceding trolley car, the motorman opens the controllerC and thus the full current of the motorsis drawn through the solenoid 12, elevating or attracting thecore 18, opening the contacts: 20 and 21 and-closing the contactsat 17" and- 19. The circuit thus closed will energize the solenoid 27- and: will flow asfollows; the trolley 1,.the conductor 11, the solenoid 12',

the conductor 13, the contact plate. 4, the' wheel? W, the contact plate 3, the conductor 14, theresistance 15, the conductor 16, the

core'18, theicontact plate 17, thesame 28% before described being elevated to contact the:plate.19, the conductor 26, the solenoid 27 and the ground 28; Thus the solenoid 27 is energized and the switch point (not shown) is operated or moved in an oppositerdirec tiontto the action thereofwhen the solenoid 24 was a previously energized.

In; order to provide a means-whereby the;

switchrpoint (not shown) will be moved to the variousdesired positions, the cores (not' shown) of the two solenoids 24 and 27 are connected by a rod 30, said rod 30 being operably connected to a pendanttlever. 33,

which'is pivoted at 34 Within the casing 32,

said casing 32 and both solenoids being in? casedin a main casing (notshown), disposed in proper position relatively" to the switth poliit (not shown). Therod 37 is connected tobe operated by the lever 33 and in turn operatesthe switch point (not shown).

From the foregoing description, taken in connection with the drawings, it is. evident that with an installation of the present'char acten, which/21180-iS;-as,readily applied to an underground trolley system as it is to an overhead trolley and: is. therefore especially. adapted for =-'u'se. in. connection; with; urban 1 and inter urbani'trafl'ic, as wen as?n1ines,witlis 1 the switchpoint' 40may be" operated to divert trafiic eitherto the right or left and as before-stated through a single instru mentality instead of asisr'the present custom' manipulating asingile electro=motor atpre-- determined. points of traflic.

What is claimed is: i t

1. A: contactor, including a block of insu lation having oppositely extend-ingiportions grooved longitudinally to I fit upon attrolley Wire, a strip of insulating material; substantially semi-circular inw cross section-and groovedgto 'fit u'pon the: under side of the trolley wire and cooperate with-.thewblock-zof:

lIlSlllittlOIl *to incase thetrolley wire, and two metal contact plates attachedatofthe block of insulation and having: Wheel engaging; por-1 contactor to. the trolley wire.

2 A contactohincludingzablock of insu+ it tions :embracingthe strip ofinsulation, but 1 out "of contact" with a each other "to clamp the lation having oppositely extending r portions-- groo ed longitudinally to fit upon a trolley; wirepa' strip of insulatingrmaterial substanr-atially. semi circula r 1 in cross.- section and grooved to fit; uponwtheunder, side: of the trolley wire and cooperate with thewblock of: v

insulationvto incasethe trolley'wire, two;

metal plates each-having a flatandialcurved portion, and means for securing? the plates so that-vthe:curved-portions clamp thei-block and strip upon the trolley; wire.

In testimonythat I claim theioregoin i .7

as my own, I have hereto-rafiixed myzsignature inzthei presenceof two -witnesses j J OHN F. I GROHOWSKY; Witnesses P. H; MEIF LL, JAMES" J. MURRAY.v

Copies 'o'ftthis I patent :may: be obtained-Ionfive cents-each, ,by addressing, the? Gommissiomerof- Patnt's';

Washington, D. G. v 

